Английская Википедия:BMW sDrive
BMW sDrive is a single axle drive architecture that is purpose-built for sport-utility vehicles. Introduced by German automaker BMW as an option for the 2013 BMW X5 (F15),[1] sDrive uses torque-vectoring and displacement mechanisms that optimise agility and efficiency.[2] Today, sDrive is available on all of BMW's utility vehicles, from the X1 through X7.
Prior to the introduction of sDrive, the majority of monocoque SUVs came with all-wheel drive, four-wheel drive, or front-wheel drive. The two-wheel drive systems present at the time were generally purpose-built for car applications in terms of handling and durability. Rear-wheel drive was generally only seen on body-on-frame vehicles such as pickup trucks and large SUVs. Prior to the F15 X5, all BMW SUVs came standard with BMW xDrive, the company's symmetric all-wheel drive system. These vehicles proved popular to general consumers but lacked the drivability and steering preciseness of the company's sedans and sports cars.[3] The development of sDrive took approximately eight years, and the internal architecture primarily took cues from BMW's sedan rear-wheel drive over xDrive. However, the slip differential needed to be built more substantially to enable the torque-vectoring system on heavier vehicles.
Today, sDrive is a popular option on BMW's SUVs. Nearly 35% of all SUVs sold in North America are optioned with sDrive.Шаблон:Not in ref Many journalists have compared sDrive's agility to be similar to BMW's smaller sedans, particularly in the case of the BMW X3 (G01).[4]
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